Yeah I'm personally not really worried about stuck pixels (was already planning on getting a new monitor this year).
However if I have experienced this due to a faulty gpu others who blame their monitors might have it as well. Thus it might be handy if we encounter a post mentioning dead stuck pixels we also advice taking a look at the gpu.
And I doubt it's intermittant, never ever had a stuck pixels in the 3years I have this monitor and before my old 6950 broke down I never had one either. It's seems completely gpu related.
Thanks for sharing thoughts.